In 1999, Adt started her career at Daimler AG as assistant to the then director of DaimlerChrysler in Belgium and Luxembourg, Annette Winkler (later her predecessor at smart).
[3] From 2002 to 2006, she was responsible for the dealer network development of the Daimler Group in Belgium and Luxembourg, before moving to the corporate headquarters in Stuttgart in 2006.
[5] In June 2018, Daimler announced that Adt would take over the management of the smart product division from Winkler.
[6] In May 2019, Adt shifted positions to run Mercedes-Benz's wholly owned and operated dealerships in Europe, reporting to Britta Seeger who is Daimer's board member for sales and marketing.
[7] Daimer has announced that Adt's role will be focused on "shaping a long-term future for the brand, which was secured by founding a joint venture with Geely in China".